SSC CHSL 6 Mar 2018 Shift 3 Paper

Section: English Language

Question : 16 of 100

Marks: +1, -0

A bus moves at a speed of 84 km/hr after repairing and moves at a speed of 56 km/hr before repairing. It covers 2x distance in 8 hours after repairing. How much time (in hours) will it take to cover x distance before repairing

Validate

Solution:

Speed of bus after repairing = 84 km/hr
Distance covered in 8 hours after repairing = 2x km
Using, speed = distance/time
⇒

84 = 2x/8

⇒

x=84×4=336

km
Speed of bus before repairing = 56 km/hr
Now, time taken (in hours) to cover 336 km before repairing =

336/56=6

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